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Regional variation of spring N-uptake and new production in the Southern Ocean
Citation
Savoye, N and Dehairs, F and Elskens, M and Cardinal, D and Kopczynska, EE and Trull, T and Wright, S and Baeyebs, W and Griffiths, FB, Regional variation of spring N-uptake and new production in the Southern Ocean, Geophysical Research Letters, 31, (3) pp. L03301. ISSN 0094-8276 (2004) [Refereed Article]
Abstract
Nitrate, ammonium and urea uptake were examined in the Southern Ocean (Australian sector) during the 2001 austral spring. On the basis of N-uptake conditions, three regions were distinguished: (1) the Sub-Antarctic Zone and the Sub-Antarctic Front, (2) the Polar and Inter-Polar Frontal Zones, and (3) the Antarctic Zone-South and the Seasonal Ice Zone. N-uptake was highest in region 3 and dominated by new production. Region 1 had the lowest N-uptake, and switched from regenerated to new production between two visits approximately 1 month apart. Region 2 displayed intermediate N-uptake and the lowest new production. This contrasts with previous study at 170°W where new production was high around the Polar Front and indicates that this area is not highly productive nor particle-exporting at all longitudes. Overall, N-uptake and new production were low all along the latitudinal transect compared to other areas of the Southern Ocean under spring conditions. Copyright 2004 by the American Geophysical Union.
Item Details
Item Type: | Refereed Article |
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Research Division: | Earth Sciences |
Research Group: | Oceanography |
Research Field: | Chemical Oceanography |
Objective Division: | Environment |
Objective Group: | Physical and Chemical Conditions of Water |
Objective Field: | Physical and Chemical Conditions of Water in Marine Environments |
UTAS Author: | Trull, T (Professor Thomas Trull) |
UTAS Author: | Griffiths, FB (Mr F. Brian Griffiths) |
ID Code: | 32088 |
Year Published: | 2004 |
Web of Science® Times Cited: | 28 |
Deposited By: | IASOS |
Deposited On: | 2004-08-01 |
Last Modified: | 2011-10-06 |
Downloads: | 0 |
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